@charset "utd-8";

/*
  Adobe Color CC https://color.adobe.com/ja/create/color-contrast-analyzer
    base color [#A4E5FA]
*/

/* clearfix */
.cf { zoom: 1; }
.cf::before, .cf::after { content: ""; display: table; }
.cf::after { clear: both; }

/* Common */
.subtitle {
  display: block;
  text-align: center;
  padding: 3% 0 3% 0;
  clear: both;
}
body {
  width: 100%;
  margin: 0;
  padding: 0;
  font-size: 0.9em;
  line-height: 1.5em;
  color: #51707A;
  background-color: #fff;
}
nav {
  margin: 0;
  padding: 5% 0 0 0;
  background-color: #fff;
}
nav ul {
  margin: 0;
  padding: 0;
}
nav ul li {
  display: block;
  width: 100%;
  margin: 0;
  text-align: center;
  line-height: 2.0em;
  border-bottom: 1px solid #fff;
}
#contents {
  width: 80%;
  margin: 1em auto 1em;
}
#contents h1 {
  font-weight: bold;
}
aside {
  padding: 3% 15%;
}
article {
  padding: 2% 0 0 0;
}
article.concept {
  padding: 0 2% 2% 2%;
}
article p {
  text-indent: 1em;
}
section {
  margin: 0 0 1em 0;
}
footer {
  width: 100%;
  padding: 2% 0;
  text-align: center;
  border-top: 1px solid #ccc;
}
a:any-link {
  color: #51707A;
  text-decoration: none;
}
a:hover {
  font-weight: bold;
  text-decoration: underline;
}

/* Switch by Media Query */
@media only screen and (min-width: 481px) {
  /* tablet 481px - 768px */
  nav {
    margin: 0;
    padding: 2% 0 0 5%;
  }
  nav ul {
    padding: 0;
  }
  nav ul li {
    float: left;
    width: 150px;
    margin: 0;
    text-align: center;
    line-height: 3.0em;
    border-bottom: none;
  }
  aside {
    padding: 0;
  }
  article.portfolio {
    width: 65%;
    float: right;
  }
  aside.aside_portfolio {
    width: 30%;
    float: left;
  }
  article.search {
    width: 65%;
    float: left;
  }
  aside.aside_search {
    width: 30%;
    float: right;
  }
}

@media only screen and (min-width: 769px) {
  /* PC 769 - */
  #stage {
    max-width: 960px;
    margin: 0 auto;
  }
  #contents {
    max-width: 960px;
  }
  nav {
    padding: 2% 0;
  }
}